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NetBurst (microarchitecture)

General information
LaunchedNovember 20, 2000 (November 20, 2000)
Max. CPU clock rate267 MHz to 3.8 GHz
FSB speeds400 MT/s to 1066 MT/s
L1 cache8 KB to 16 KB per core
L2 cache128 KB to 2048 KB
L3 cache4 MB to 16 MB shared
Architecture and classification
ArchitectureNetBurst x86
Instructionsx86, x86-64 (some)
Physical specifications
  • 1-2 (2-4 Threads w/ HT)
Products, models, variants
  • Celeron Series
  • Celeron D Series
  • Pentium 4 Series
  • Pentium D Series
  • Xeon Series
SuccessorIntel Core
P7 Itanium(IA-64)

The NetBurst microarchitecture,[1][2] called P68 inside Intel, was the successor to the P6 microarchitecture in the x86 family of central processing units (CPUs) made by Intel. The first CPU to use this architecture was the Willamette-core Pentium 4, released on November 20, 2000 and the first of the Pentium 4 CPUs; all subsequent Pentium 4 and Pentium D variants have also been based on NetBurst. In mid-2004, Intel released the Foster core, which was also based on NetBurst, thus switching the Xeon CPUs to the new architecture as well. Pentium 4-based Celeron CPUs also use the NetBurst architecture.

NetBurst was replaced with the Core microarchitecture based on P6, released in July 2006.

  1. ^ Carmean, Doug (Spring 2002). "The Intel Pentium 4 Processor" (PDF). Intel. Archived from the original (PDF) on April 19, 2018.
  2. ^ "Replay: Unknown Features of the NetBurst Core". XbitLabs. March 6, 2016. Archived from the original on March 6, 2016.

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